An amazing story on the costs of freeing up knowledge in some contexts:
http://news.nationalgeographic.com/news/innovators/2014/04/140421-haidara-ti...
There is a wikipedia page on this [1], but the behind-the-scenes story is incredible, so sharing widely.
Best Bishakha
[1] http://en.wikipedia.org/wiki/Mamma_Haidara_Commemorative_Library